# Kuject WT001 Solder Seal Wire Connectors, 120-Piece

Piece: Kuject WT001 solder seal wire connectors are a colour-coded butt-splice set for joining wires with heat. The listing describes a self-soldering, heat-shrink design intended for automotive and marine wiring, but customers report that getting enough heat to melt the solder can also damage the sleeve.

- [Original product page](https://bargainpostbox.co.uk/product/kuject-wt001-solder-seal-wire-connectors-120-piece)
- [View offer](https://bargainpostbox.co.uk/visit/kuject-wt001-solder-seal-wire-connectors-120-piece)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Kuject
- Model: WT001
- Category: Tools & Garden > Hardware & Building Materials
- Price: 8.49 GBP
- Previous price: 10.99 GBP
- Discount: 23%
- Price checked: 2026-11-12T17:36:18.092Z
- Rating: 4.5 / 5
- Reviews: 45687

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Self-soldering butt splices are described as requiring a heat gun rather than crimping or separate soldering.
- Four colour-coded connector sizes are specified for different wire cross-sections.
- Listing claims hot-melt adhesive rings and heat-shrink tubing help seal the connection against moisture.
- Connectors are described as bendable after joining, which may help in narrow spaces.

## Pros

- The four listed wire-size ranges provide options from 0.25-0.34 mm² up to 4.0-6.0 mm².
- The self-solder and heat-shrink approach combines joining and insulation in one connector.
- Customer feedback reports ease compared with soldering and connections that hold up over time.

## Cons

- A heat gun is required, and customer feedback says substantial heat may be needed to melt the solder.
- Customers report that the sleeve can melt or burn during heating, making temperature control a practical concern.

## Specifications

### Identity
- Brand: Kuject
- Model: WT001
### Connector details
- Connector type: Butt Splice
- Terminal: Butt Terminal
- Colour: RED BLUE YELLOW WHITE
- Maximum voltage: 12 Volts \(DC\)
- Working temperature: Work Temp: -67℉ - 257 ℉
- Contact material: Phosphor Bronze
- Insulation material: Polyethylene
- Material listed: Tin, Polymer
- Specification listed: IATF16949:2016
### Dimensions and installation
- Weight listed: 0.24 Pounds
- Dimensions: 20L x 10W x 1.7H centimetres
### Connector sizing and heating
- White connector size: Diameter 1.7 mm, able cross-section 0.25-0.34 mm² \(A.W.G.:26-24\)
- Red connector size: Diameter 2.7 mm, Cable cross-section 0.5-1.0 mm² \(A.W.G.:22-18\)
- Blue connector size: Diameter 4.5 mm, Cable cross-section 1.5-2.5 mm²\(A.W.G.:16-14\)
- Yellow connector size: Diameter 6.0 mm, Cable cross-section 4.0-6.0 mm²\(A.W.G.:12-10\)
- Shrinkage ratio: 3:1
- Temperature that start to shrink: 80℃
- Temperature that solder ring start to melt: 111˚C
- Temperature that solder ring melt completely: 138˚C
- Suggested hot air gun setting: 400-600℃ \(752-1112°F\)

## Before you buy

- The title says 120 pieces, while the package list totals 120 connectors: 30 white, 40 red, 40 blue and 10 yellow. The listing also describes the outer material as both polyethylene and polyolefin, and gives manufacturer claims about water resistance and certification that are not independently confirmed here. Follow the specified wire-size ranges and use controlled heating, as customer feedback reports sleeve damage during heating.

## A good fit for

- DIY automotive or marine wiring repairs where the wire cross-section matches one of the four listed connector sizes.
- Buyers seeking a heat-activated splice that does not require crimping.

## Less suited to

- People without access to a suitable heat gun.
- Wiring that exceeds the listed 12 Volts \(DC\) maximum or falls outside the specified cable cross-sections.

## Customer feedback

Customer feedback describes the connectors as easy to use compared with soldering and says connections can hold up over time. It also raises a practical heating concern: enough heat to melt the solder may melt or burn the plastic sleeve. Experiences with convenience and value are mixed. That matters for a heat-activated connector whose listing recommends a 400-600℃ hot air gun setting, so careful heating is important. Aggregate ratings lean positive, but do not establish how reliably any individual joint performs.
- Positive themes: Customers report that the connectors work well and can be easier to use than soldering.
- Positive themes: Feedback describes strong connections that hold up over time.
- Negative themes: Customer feedback reports that the sleeve can melt or burn while applying the heat needed to melt the solder.
- Mixed feedback: Customers disagree about convenience and whether the connectors are worth the money.

## Frequently asked questions

### What is included in the listed 120-piece set?
The package list specifies 30 white, 40 red, 40 blue and 10 yellow connectors.
### What wire sizes do the connectors fit?
The listed cable cross-sections are 0.25-0.34 mm² for white, 0.5-1.0 mm² for red, 1.5-2.5 mm² for blue and 4.0-6.0 mm² for yellow.
### Does installation require a heat gun?
Yes. The listing describes heating the connectors to shrink the tubing and melt the solder ring, and suggests a hot air gun setting of 400-600℃ \(752-1112°F\).
### What do customers report about installation?
Customer feedback says the connectors can be easier than soldering and form strong connections, but also reports that substantial heat may be needed and the sleeve can melt or burn.

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## Images

![Kuject WT001 Solder Seal Wire Connectors, 120-Piece — 1](https://bargainpostbox.co.uk/i/Z0AvKLVKo6t6wTwBi3Ev4OtqNdxYdLm_w2x6JRg7BHZoo_ypAwrtoOBxoQQflnNWVojCFYVfuSPdDV-0C5Af2VQRxtn3PFKE76KWJxFNNqWIK6Qj0yE1.jpg)

![Kuject WT001 Solder Seal Wire Connectors, 120-Piece — 2](https://bargainpostbox.co.uk/i/MzOBeGOWfrhz-7xZplWNUTa8ckl1CP5x62eWmQIyYcdQpu9TV5frTltOwBHWNYXaIH9t87EfE3zud63MfvsUmv89RXjsjH5K4RMEL88JY-cgXIAvYHAZ.jpg)

![Kuject WT001 Solder Seal Wire Connectors, 120-Piece — 3](https://bargainpostbox.co.uk/i/bg7yYOdzov-ljD8z626NJ6NN7DoOl7rOn8qdcfnyT0Y8cnfWGA6IrbS8Myx8UdzUWLa8i9SZY_tLyK0soGZXfsqet3JsV3Smg4eh6gMtZRxFGUyYxhnJ.jpg)

![Kuject WT001 Solder Seal Wire Connectors, 120-Piece — 4](https://bargainpostbox.co.uk/i/SuSiCo4r4Dd54BDrx-aNSTjI9JxtwXSlzR-OxVuJZEfQlFObfB1AWhETFKAzXMr8Xt-CHMY2iMqSw8KpYhhWHx7fCxREp6W5I3KxVFn9UXaLpxuCHmph.jpg)

![Kuject WT001 Solder Seal Wire Connectors, 120-Piece — 5](https://bargainpostbox.co.uk/i/5qdqysqGVFq-DDlZLYCzbJMMHUKVEDYmb2qYXJ6oYDjsaW4lborV8yBr67lapwtSNL20lW6jVZfKvms0f5PNgTBDk3lXcvBADOtvADCLXjQ7X6QQLhSl.jpg)

![Kuject WT001 Solder Seal Wire Connectors, 120-Piece — 6](https://bargainpostbox.co.uk/i/mkM-7xTsPSGGiz8-V73tKMS5xch0BRNMzhOzGO95IaKkNZ-8x9-JLDR-psKUhUNf0PYalt64aiEUpsHsErUsKaj03mnI9aLKXvo-48ASHJUCl7KWtvK3.jpg)

![Kuject WT001 Solder Seal Wire Connectors, 120-Piece — 7](https://bargainpostbox.co.uk/i/78ZURhOzvE3kzfaspzHtmEdEaIIvxk1pj0E8uZ4KVENv1LHGHZ2Qw11WEOLPjok7catpcGwunlxKME2vAoCJ2eM8_tIg98NtE4J_guydV661Ol32dvXf.jpg)